/*
 * Package il.ac.biu.cs.grossmm.impl.simple
 * File Identifiers.java
 * 
 * This is a part of presence service framework prototype. 
 * See javadoc for more information.
 *  
 * Copyright (C) 2006 Grossmann Mark
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package il.ac.biu.cs.grossmm.impl.simple;

import java.util.Random;

/**
 * Identifiers
 */
public class Identifiers {
    static Random random = new Random();

    public static String generate16bitId() {
       int r =  random.nextInt(Short.MAX_VALUE);
       if( r>0 )
           return "x"+Integer.toString(r, 36);
       else
           return "y"+Integer.toString(-r, 36);
   }
    
    public static String generate32bitId() {
         int r = random.nextInt();
        if( r>0 )
            return "x"+Integer.toString(r, 36);
        else
            return "y"+Integer.toString(-r, 36);
    }

    public static String generate64bitId() {
        long r = random.nextLong();
        if( r>0 )
            return "x"+Long.toString(r, 36);
        else
            return "y"+Long.toString(-r, 36);
    }
}
